Gill-box drawing-head.



H. L UFPERMANN.

GLL BOX DRAWING HEAD.

APPLIOATION FILED JULY1s,19oe.

Patented May 311910.

/J frag/Vim' HUBERT I .EoPoLn ernennt-ANN, or; LE1PzrG,

@ILL-nox DRAWING-.HEAR -f To all whom itmoy concern.'

Be it known that I, HUBERT LEOPOLD OF- renMANN, a subjectof the Kin ofSaxony, residingat 2l Bismarkstrasse, Eeipzig, Ger-l many, have inventedcertain new and useful Improvements in Gill-Box Drawin Heads; and-Idohereby declare the fo lowing to be a full, clear, and exactdescription of the invention.

used in connection with fallers in textilev work, and moreparticularlyto fallers having two'rows of pins', the back row which isso much higher than the front row that back row still remains'therein,and in which the withdrawal of the fallcrs is accomplished insuchii-manner that the pills iA are -lirst withthe pins of the the" frontvand shorter row drawn andthe withdrawal of .21,2 hack row is o nlyaccomplished when, through ,.i.. the"fnr'ther 'progress of the faller,this row l1as `reached a o ilit corresponding to the j". point at whicht itil front row was depressed. 1' idln this drawinglirocess anlauxiliar hainmer or cam is employed 'by means ot which thefallels` arepressed down on to their in- 4tei-mediate position in such a. manner asto allow the withdrawal of the front row of pins from the sliver. In theconstruction used heretofore, owing 'to the limited surface on whichlheauxiliaryhaimnerhas t0 Work on the fallers, both are sub'ect to muchweer, soA that the lowering of tie lallers is lmore or less uncertain,and as the auxiliariy hammer forms one piece with the gi l screw-beingtoo smal to' be screwed or soldered'on to the sameit has beennee'essary, in the ease vof excessive wear to "replace this part by Atheexpensive expedient 'of'an entirely new gill screw, '.llhisdisadvanta'gefseek to overcome, by providing a lar e wearing surface, and by soconnecting .t 'e auxiliary hammer that the latter is drivenby a set'ofwheels-connectedwith the guiding screw., This the action ofVthemainlnnnmer and of tho' anxi iary lhammer onf-the fallersisaccomplished alternatel and at thedeslred moment; Anotherisadvantage'is,that when t e aller sin': its -intermedlate position, the

sub ectftq' t e same tendency inthe u ppermost position ofth'efaller asthe front and Specification of Letters Twintf Application-tiled July 18,1898.-

Myinvention relates to drawing heads,`

Awhen their-ont row has left the sliver the.

,this shaft a wheel 'It is auxiliary hammer .stroke or blow followed atthe proper interval .by one froi -the main hammer. By th' quentlyminimized.

is done'insueh amanner that/ proecting part ofthe bae'k row of pins is'GEBMANTI serial no. 444,242.'

his disadvantage is overcome by the back row being 'composed of fiatpins, whose cross section 1s calculated in such a manner that theprojecting portion possesses tile -ffllll't ins Whichthey expos-e them;Selves to te reater influence of the draw'- ing rollers.

Patenten may a1; 1 -awr..A

the same power of resistance against being pushed through as the frontins,

In the accompanying drawlng-Figures 1 and 2 show in front View a portioncfa drawing head at the `moment of the commencement of the action of thevv-auijrilia hammer. Figs. 3 and 4 show the sameparts as they appear atthe expiration of its-ecltion. Figs. 5 and 6 show the mechanism 'as itappears at commencement of action ofthe main hammer., Fig. 7. shows inplan view afsu portion of the drawing head togetherwith .the guide screwand the.set of wheels drivmg the auxiliary hammer, and Fig. '8'sho ws ataller whose front row 1s com osed ofi.

round pins, whose higher and bac row of pins are lia-t. Onlhe a'xle c ofthe nid'e screw is fixed s toothedwheel f whic by` means of thel wheelr/ drives a short shaft p aced which by (Fig. 7). O11'- menns of anintermediate wheel i drives the l l which is connected with the wheel /tand -tnrnsnround the 'ivot n. As the wheels f, L,'i a'1ry twice t ber ofteethas t e\v wheel' k, themotion of -the auxiliary hamner-co1'respondstothat of the main hammerin such wise that each the striking surface ofthe auxiliary hammer 1s a larger one and the wear conse- The falleflabein cated in' Figs. l an 2, is engaged l'yfthe mlxilia-l'y-ha-mmer eand thus orced ownward] until it engages the intermediate step shown inFigs. 3 and 4.- The action of the machine being continned, the-feller.

Illlmi 5 and 6 and it `is tl'rere'en- Of the a11x-iliary.,hammer.,' s

is arrangeme t 95.

in the tesina-linda" Y' ies g y H 960,107

diierent axes, and means, for operating the l shxift,.a guide srevv, andgearing for oprhammers alternately and at intervals. I ating theauxiliary' hammer from theiguide 10 f a-drawing lead forhgill bxghascrew. a er avm `rowses'o pins t enso t e .y 5| mr mw beng ofgreaterlengt than the I HUBERT LEDPOLDQFFERMAU.

pi's`bf the `front jrow, a rotary main ham- Witnesses:

mer, a rotary auxiliary hammer mounted on RUDOLPH Fmzcmz,

the Qshnrf. -adjacent to the main hammer SQUTHARD P. WARNER.

